Warp pile fabric



Nov. 22, 1932. F. ANDREAE 1,888,944

WARP PILE FABRIC Filed June 26. 1931 Patented Nov.22, 1932 PATENT OFFICEFRITZ ANDREAE, OF COLOGNE, GERMANY WARP FILE FABRIC Application filedJune 26, 1931, Serial No.

The invention relates to a new type of fabric having an uncut pile faceconsistingof highly twisted continuous filament crepe threads which isparticularly suitable for fine silk and artificial silk materials, andpossesses substantial advantages over the known types of fabrics.

In the accompanying drawing- Fig. 1 is an end elevation of the backingwith loops before they become automatically spiralized, and

Fig. 2 is av sectional view of the fabric with the loops spiralized.

The known fabrics have in particular the defect that they cannot standpressure, the

pile bending aside at the points where pressure is applied, and notrecovering its erect position spontaneously. The fabric consequentlyassumes an unpleasant appearance,

' which can only be removed, to a certain extent, by steaming or thelike.

It has already been proposed to make the cut pile of a fabric fromtightly twisted threads, in order to impart a curly effect to the tuftsresulting from the cutting of the pile. Such a fabric, however, alsoexhibits merely a relatively low compression strength,

particularly because the individual tufts soon become completelyuntwisted during wear,

there being nothing to prevent that occurrence.

According to the invention, the aforesaid defects are remedied. Theinvention relates to a pile fabric, with uncut twists formed ofspiralized loops such as strongly overtwisted filling threadssuch ascrepe threads which when looped upon the weft and warp threads or thebase, and as the loops are unrestrained they will take the form ofupstanding and 0 spiralized or intertwisted looped and uncut tufts, thespiral form of the tufts being self produced and maintained, so that inuse the tufts will embody automatic intertwisted and upstanding tufts,in contradistinction to the pile chenille and uncut velvets. As shown inFig. 2, the individual, uncut loops at, thus 3.0-. quire a cork-screwtwist. The advantage of 'this'new type of crepe pile fabric consistsprimarily in a quite extraordinary increase in 90 compression strengthand resistance of the 547,111, and in Germany March 28, 1931.

pile. For example, the new fabric can be rumpled and twisted to anyextent, without producing the slightest creasing of the material, which,on being spread out again, is exactly as smooth as before. Moreover, thepile of this new fabric stands perfectly erect. Consequently, the newfabric can be juxtaposed in any convenient manner, when being worked upinto clothing and the like, without any necessity for considering'as waspreviously the casethe life of the pile.

In manufacturing the new fabric, it is advisable to use a stronglyovertwisted thread (crepe thread) for making the pile. When the finishedfabric is afterwards dyed in the piece, the individual loops a will thenautomatically twist in spiral or corkscrew form, as shown in Fig. 2.Other methods, however, might also be adopted for producing the newfabric.

The character of crepe thread is well known and, as stated above, thefabric when dyed in the piece will cause the loops to possess certaincharacteristics. Obviously, this same result will occur when the fabricis moistened as it is when being treated or subjected to the finishingprocesses.

Furthermore, it may be stated that the crepe threads to which referencehas been made may be defined as consisting of fibres of continuouslength.

I claim:

1. The method of producing a fabric which consists in simultaneouslyinterweaving with a backing of warp and weft threads, an uncut pile faceconsisting of highly twisted continuous filament crepe threads passedunder and over the weft threads and looped selectively and successivelybetween two weft threads of the backing, inserting a loop supportingelement while said crepe threads are being secured in place, and thenwithdrawing the said loop supporting element, whereupon the said crepethreads twist to form a plurality of loops projecting substantially atright angles to the warp and weftof the fab- I10.

2. A fabric having a crepe-like pile facing, the pile of which is uncut,said pile consisting of loops of highly twisted continuous 2 meneeefilament crepe'ynrn interwoven between the wnrp and Weft threadsthereof, st 21pprom'mmtely at right angles t0 the warp and Weft andbeing twisibedl the produce n plurality of resilient spirals.

In testimony whereof, I my sinfnni'eo FRITZ ANDREAF).

